Internal-combustion engine.



'P. D.- GALKINS & A. 0. JOHNSON. INTERNAL COMBUSTION ENGINE. APPLICATION FILED JAN. 30, 19 13.

1;097,1 66, I Patented May 19 1914.

gmmsf INVENTORS f7 0 0. 6770mm;

(ll-W fif/PEO O dab M904;

ATTORNEYS ing sectio'n and witha portj 31-in-the inner bearing section. The port 31 extends "diametrically ofthe cylinder While the ports and 30 extend in oppositedirections in the outer bearing section and register with ports 32'and 32 in the-cap to place the cylinder in-communicatio'n alternately with the atmosphere and with a source offuel supply. During the explosion of a charge in the cylinder, the outwardpress'ure on the valve is greater than at other times, and

it is'impossible. to arrange a spring, so that it will-furnish the exact degree of tens on necessary duringthe-iexplosion tomake uniform pressure on the valve. By arranging the diaphragm in the recess which is in communication with the explosion chamber, the pressure on the valve is equalized during .the explosion, and is uniform at all times. .The springs 22 are sufii'ciently strong to hold the outer sectionifirmly in place, normally, and duringan explosion, the diaphragm givesthe additional pressure-needed. f

' The above construction forms the subject matter of our above mentioned co-pendingf Serial No. 718,247 and is shown and described in the said co-pending applie application,

cation. The subject of the presentinvention is the liner shown in- Fig. 3, the said liner consisting of two 'similansema-cylmdrical. sections 33 and 34, the said sections, whenarranged as shown in Figz'forming acylindrical lining or bushing, adapted to bef arrangedbetween the'valve-12 and the revalve chamber.

spective" sections of the bearingchamber. The respective s'ections 33 and 34% have longitudinal passages 35 and 36're'spectively,c

whichregister with the ports 30, 30*,fand 31 of the valve chamber when the lining is in place. Dowel pins 37 and 38 are provided for holding the sections of the liner in place and for preventing either angular orlongitudinal movement of the said sections.

,Each of the said dowel pinsis connected.

witha liner section and engages an opening in the adjacent section of the bearing or It-will be understood that the improved liner can be used in connection with any type of engine, having a rotating valve and a.

sectional bearing chamber, but it. is especially adapted for use with the engineshown in the above mentioned co-pending application.

We claim 1. In an engine, the combination with the cylinder and the rotating cylindrical valve at the outer end thereof, of a sectional bearing chamber for the valve, one of the sections of the chamber being connected to the cylinder, and the other section being movable toward and from the first-named sec- .tion, means in connection with the engine for transmitting the pressure from the combustion chamber ofthe cylinder to the mov able bearing section to cause the pressure exerted by the said section on the'valve to vary with the variations-of pressure in the combustion chamber, springs normally press ing the movable section toward the fixed section, means for varying the tension of the springs a removable lining between the valve and thebearingchamber, the said lining consisting of similar semi-cylindrical sections, each section having a radial dowel pin, one of the sections of the lining being arranged adjacent to each section of the .bearingchamber, each of the said bearing chamber sections havingan opening for receiving the dowel pinto fix the lining with respect to the bearing chamber section.

2. In an engine, the combination withthe cylinder and. the rotating cylindrical valve' at the outer end'thereof, of a sectional bearing chamber for the valve, one of the .secg tions of'the chamberbein'g-connected to the cylinder, and-the other-section being movable toward and from thefirst-named section,' means inconnection with the engine forftransmittingthe pressure from the como bustion chamber of the cylinder to the movable-bearing section to cause the pressure exerted; by the said section on the valve to vary withthe variationsof pressure in the combustion chamber, springs-normally press-' ing the'movable section toward the fixed.

section, means for varying' the'tension of the spring, .a removable sectional lining'between the valve and'the bearing chamber, and means'in connection withthesaid lining f and thel'bearing chamber sections for-pre-rx-u venting movement of the liningsections with p respect to the bearing chamber sections.

3'. In anengine', the combination with the cylinder and the rotating cylindrical valve 'lining between the valve and the bearingchamber, and 'means in connection with the said lining and the bearing chamber sec- 129 t-ions for preventing movement of thelining' sections with respect to the bearing chain--- ber sections.

4:. In an engine, the combination with the cylinder and the rotating cylindrical valve at the outer endthereof, of a sectional bearing chamber for the valve, one of the sec-' tions-o'f the chamber being connected tothe' cylinder and the other section being movable toward and from the first-namedsec- 130 tion, a removable lining between the valve the adjacent bearing chamber section for preventing relative movement.

5; In an engine, the combination with thecylinder and the rotating cylindrical valve, of'a sectional bearing chamber for the Valve, one of the sections of the chamber being connected to the cylinder and the othersection being movable toward and from'the first-named section, a removable sectional limng for the bearmg chamber, and a connection between each section of the lining Y and onewof'the sections of the bearing chamher for' preventing angular-movement of the linin I section with-respect to the bearing fcham er sect1on'.

FRED 1).- CALKINS. v "ALFRED C(JOHNSON. Witnesses: r I EMIL W. SNYDER, HELEN M. SAMPSON. 

